Narrative:The Viscount was being used for a semi-annual flight crew check involving a simulated two engines out emergency landing. The aircraft was approaching Ciampino runway 16R with engines no3 and 4 out when it suddenly went into a right bank, some 400 m short of the runway threshold. The Viscount struck the ground with the right wingtip and crashed.

Probable Cause:

PROBABLE CAUSE: "The accident was attributed to a balked landing manoeuvre carried out below the speed limits for safe directional control of the aircraft during a critical situation that developed in the last phase of the landing in the course of a simulated emergency exercise with two power units inoperative (nos 3 nd 4) and two operative (nos. 1 and 2)."

Sources:

» ICAO Circular 64-AN/58 (84-91)

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This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.